The maximum clock frequency of the SN74LS175D is 25 MHz, but it can vary depending on the operating conditions and the quality of the clock signal.
To ensure proper power and decoupling, use a 0.1 μF ceramic capacitor between VCC and GND, and a 10 μF electrolytic capacitor between VCC and GND, as close to the device as possible. Also, use a low-impedance power supply and keep the power supply lines as short as possible.
The recommended operating temperature range for the SN74LS175D is 0°C to 70°C, but it can operate up to 85°C with reduced performance and reliability.
The asynchronous clear input (CLR) should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) to prevent accidental clearing of the flip-flops. When CLR is low, the flip-flops are cleared, and when CLR is high, the flip-flops operate normally.
The propagation delay time for the SN74LS175D is typically around 10-15 ns, but it can vary depending on the operating conditions, temperature, and load capacitance.